Administration.—Give the remedy indicated every second day until an improvement is manifest; then twice a week.

Diet And Regimen.—Similar to that recommended in other chronic affections of the eye.

IX. PRESBYOPIA. (Farsightedness.)

Presbyopia, (from the Greek, signifying old and the eye,) "because it is frequent with old men." This defect of vision also depends upon the formation of the eye to a great extent, but the conditions are the reverse of those in Myopia. Presbyopia depends upon a flattened state of the cornea or of the crystalline lens; sometimes upon a want of density in the cornea or humors of the eye, by the use of various preparations of Mercury, and by the excessive use of ardent spirits.

Treatment.—When Presbyopia occurs in those addicted to the intemperate use of ardent spirits.

Nux- Vomica, Sulphur, Lachesis.

When it occurs in those of lax-fibre, or who are thin and spare, or subject to catarrhal difficulties. Silex, Phos.

When it occurs in such as are rather inclined to be fleshy; those of a phlegmatic temperament, or disposed to Scrofula. Belladonna, Calcarea-carb.

Administration—As in Myopia.

Diet and Regimen—The same; and avoid rubbing the eyes, as that not only tends to retard a cure, but will, in many instances, produce the very condition.

X. HORDEOLUM. (Stye.)

Hordeolum, (from hordeum, barley.) It is a small tumor situated on the eyelids, and, according to our lexacographers, resembles a barley corn; whence its name. It appears to be simply a little bile situated on the edge of the eyelids, and generally near the greater angle; is dark, red, and painful, and attended with constitutional symptoms, such as fever, headache, and accelerated pulse, when it attacks those of nervous and irritable temperament. The affection is of quite frequent occurrence in a scrofulous habit, and depends upon a peculiar, irritable, or diseased state of the meibomian glands.

Treatment.—When there are constitutional symptoms present, such as fever, headache, and the little tumor is exceedingly painful and pulsating. Aconite, Belladonna.

When it occurs without any material constitutional derangement; the swelling is painful, and there is an itching of the edges of the eyelids. Sulphur.

When it is of frequent occurrence, aided by a scrofulous diathesis. Belladonna, Calc-carb., Silex.

When suppuration has commenced. Sulphur, Silcx.

Administration.—Give the drug indicated every two or three hours if fever is present; in the absence of fever, every four or six hours is sufficient.

Diet And Regimen—In accordance with homoeopathic rules, while under the influence of medicines.

XI. CJJYCER OF THE EYE.

Cancer depends upon a peculiar degeneracy of the system, or of the part affected, and is, in many instances, of a hereditary character, (for a fuller description, vide chapter on Cancer.) It is dangerous, and is to be dreaded wherever it may locate itself, and more especially when it attacks the delicate structure of the eye, producing, in most instances, loss of vision, the destruction of the organ, and a pitiable deformity.

Cancer of the eye can be distinguished from fungous /nematodes of the same organ by the pulpy softness of the latter, while the former is firm and almost of a cartilaginous consistence. Again, Cancer most always commences on the surface of the eye, affecting the conjunctiva first; while fungous-haematodes commences by affecting the more deeply seated parts of the eye, generally the retina; and in the language of Scarpa, (vide his "Diseases of the Eye,") "Cancer of the eye is far less destructive than fungous-haematodes, for the two important reasons that cancer begins at the exterior parts of the eye, so that whatever relates to the origin and formation of the disease is open to observation; and secondly, because the cancerous fungous of the eye is not malignant on its first appearance, but becomes so in process of time, or from improper treatment."

Cancer of the eye generally commences on the conjunctiva by a degree of redness inclining to blue, moderately raised, with veins radiating from it; as it increases in size, it appears as a small fungous tumor of bluish ash color, not hard at first, but as the entire organ begins to partake of the cancerous action, the tumor becomes firm, and cartilaginous, with an uneven, watery exterior; the pain becomes severe, of a sharp, stinging character, and the countenance is an index of mental and physical suffering.

Treatment.—The principal remedies for the treatment of Cancer, are Arsenicum, Conium, Cicutce, Hyosciamus, Belladonna, Carbo-animalis; and Laurocerasus is especially named for Cancer of the Eye.

When the pain consists in violent stitches, deep in the eye, increased by moving it; or stinging, burning pain; the vessels of the eye congested and of a dark color.

Arsenicum.

For redness and a tremulous look as if the eye trembled and protruded; the pupils dilated; the sight obscured and shortened; a burning, smarting, and prickling sensation. Conium, Cicuta, Hyosciamus, Helleborus, Carbo-animalis.

When there is a diminution of the pain in the eyes; the vessels spread like the branches of a tree from the inner canthus toward the pupil; the eye is dry, with a degree of warmth or burning. Laurocerasus.

Administration.—Give the remedy selected every four or six hours, until the condition for which it was prescribed is changed; then the others in the order in which they are named, using each drug two or three days.

External Applications.—I have generally applied the same remedy externally that the patient was taking, with decided advantage; Arsenicum externally and Conium, Cicutce, Hyosciamus, and Helleborus, (the expressed juice, or extract ;)and I have no hesitation in saying that Cancer in the Eye can, in many instances, be arrested by a similar course of treatment, if the treatment is instituted before the disease becomes decidedly malignant.

Diet And Regimen—In accordance with Homoeopathy.

CHAPTER XVI.

MENTAL DERANGEMENT.

Under this general head are embraced the different forms and grades of diseases of the mind, the rational soul of man, the intellect, the most noble part of the human creature.

And while contemplating the subject, I could, in the language of the lamented and eloquent Rush, lay down my pen and bedew my paper with tears, did I not know that the science of medicine has furnished a remedy for it, and thousands are now alive and happy, who were once afflicted. Diseases of the mind have been the subject of the most earnest inquiry, and have called forth the energies of the ablest pathologists in order to ascertain the seat of the primary irritation. But their observations, thus far, have been vague and unsatisfactory; one maintaining that the primary seat is located in the epigastric region, another that it is located within the abdomen, and others in the brain. Whatever may be its character pathologically considered, or the mysterious association of mind with matter, it has not yet come within the limits of finite comprehension; it is certain, however, that there is a mutual dependence, for every manifestation of the mind is through the medium of the body, "a derangement in the functions of the one seldom fails to induce a corresponding disorder in the functions of the other."

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